Simple Backup Method to USB drive
Having used proxmox for our own needs, I'm thinking to use it for some small clients. I need some ideas for simple (very simple) instructions to check the backup and swap usb drives: Have you guys got...
View ArticleProxmox VE 3.4 -- Problem starting a virtual pc.
Hello. I created a virtual pc with windows xp iso. I assigned 512 of ram, one sockts and two cores, a 2GB HDD, the network card is e100. When I try to start the virtual pc I get the following error:...
View ArticleConceptional question: implementing a redundant network (including switches)
I am planing a cluster for a scientific application. I want to use 4 nodes and set up an HA cluster. The nodes have 6 NIC (1GbE) each. Now I want to add redundancy for each network component. The...
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differences in memory - Windows 7 and Windows 2012
I have a problem with Proxmox. I have installed some guest virtual machines Windows 7 and Windows 2012. The memory on the Web Promox is different in the Windows Task Manager. What is the matter? that...
View Articleonline resizable filesystem for resizable block devices
Is there an online expandable filesystem for virtual storage? would like to be able to resize a guests block device on the ceph cluster and its filesystem online without downtime. is this possible?
View ArticleOpenVSwitch port mirroring with an OpenVZ container
Hi, I am testing the possibility of OpenVSwitch in Proxmox and I am stuck on the port mirroring with my OpenVZ container. It work well with the KVM VM and I don't have any error when I set-up a...
View ArticleVM's crashing
I have a couple of proxmox nodes using a shared storage (nas) over nfs. I have been running proxmox 3.3 for months without many problems. The only problem I had is that I have one VM running Kerio...
View ArticlePCIe Passthrough / VM off again / Device back to Host?
I make some Tests with PCIe passthrough (vfio). Should the Device not be back at the Host again after shutdown of the VM? "dmesg" shows only that it is disconnected at Startup. Quote: root@proxmox:~#...
View Articleautomated checks for things that make fencing and HA migration fail
got fencing and HA migration working, but theres some tricky parts. id like to make a playbook(ansible) to check for these. i noticed a couple things to check for. in one case rgmanager was not running...
View Articlelow available instances, kill or suspend if resources are needed
is it possible to make instances that are, by definition, not important? if the cluster needs the resources, for example during an failover migration, it can suspend or kill them? maybe send an alert,...
View Articleis reboot a safe fencing action? yey for pmxcfs!
pmxcfs is brilliant. if i ever meet whoever came up with that, im getting you beer (or booch if you dont drink) anyway, seems like it prevents a rebooted node from trying restart a migrated instance....
View ArticleWhat is saved in back ups?
Hello, I have a Zentyal system installed on my Proxmox server and I did a backup job where it makes a snapshot of the VM every night. Zentyal uses two virtual hard disks and I am not sure if everything...
View ArticleGrub2 recovery on ZFS Proxmox VE 3.4
Before we are going to switch to ZFS in production, we would like to know exactly how to recover from a failed Grub2 boot. Previously, with ext3/ext4, we could simply boot from a standard Debian...
View ArticleUpgraded Debian from Xen to Proxmox: pv/vg/lvscan finds VM related devices
hi, for short: I have changed my Debian Xen to a ProxMox host, with Enterprise repository enabled. Today I wanted to create a new VM on a single VE Host, but I get "proxy detected vanished client...
View Articlenon-HA cluster
Hello everyone, I have a three-node cluster running including ceph and would like to know if the following is possible: If one of the nodes goes down, I would like to be able to start one of the dead...
View ArticleZFS on existing iSCSI Storage
We have 2 Proxmox HA CLusters. One with iSCSI Storage using multipath and one using multipath on an Intel Modular Server (2 Storage Controllers). At the moment we only use LVM for Disks. This works...
View Articlenuma config option
Hi, Since 3.4, there is this 'Enable numa' checkbox. I am a bit confused as to what implications enabling this has? Does it mean 'this host system is numa, therefore make use of CPU pinning, restrict...
View Articlepve zfs and drbd
Hello Is anyone using drbd on top of zfs ? Or are there reasons not to do so?
View Articlezfs_arc_max does not seem to work
Would like to see if anyone else has had this issue where zfs_arc_max does not seem to limit zfs. currently awaiting a server I ordered to replace a desktop class machine I use for a lab. Decided to...
View ArticleVM: 1 socket 2 cores OR 2 socket 1 core?
Hello proxmox-community, I am curious about the question mentioned above. What would be the better setup? Thanks in advance for every answer :-) Regards, Afox
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